I recently purchased and installed a Megan AFPR. First of all it does not come with an adequate rail adaptor. Mine imparticular didn't even include any vacuum lines. Also I had to order $40 in additional fiitings to make the install possible. Other than that it appeared to be made well. An allen wrench and a (cheap)gauge is included to make adjustments.

I've had the AFPR installed for approximately a week now and I am not satisfied with its performance. I set the psi to 43-44 and it changes at random. I am constantly having to re adjust base pressure with this thing. At this point I do not feel it is a reliable product and I will be returning it. I would not recommend this to anyone.